zoanana990/qubitas

Qubitas Bootloader

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     ###     AN OPEN SOURCE TUTORIAL OPERATING SYSTEM IN 2023

This is a simple bootloader for exercise

Introduction

• The device we use is STM32F746ZE
• This project is refine the bootloader course, simplied the code and support multi-devices

Getting Start

Environment Setup

TODO

Directory architecture

.
├── app                // architecture level test code
│    ├── cs            // prototype os
│    └── svc           // user space -> kernel space
├── arch               // for arm cm7 architecture
│    └── arm
│         └── init
├── boot               // for bootloader usage
├── build              // the compiled image
├── cmd                // command line usage, will move to app
├── doc                // development document
│    ├── FreeRTOS
│    ├── Qubitas
│    └── cortex_m7
│        └── img
├── driver             // driver code for STM32F746
├── include
│    ├── app
│    ├── arch
│    │    └── arm
│    ├── ds
│    ├── kernel
│    ├── mm
│    ├── net
│    └── qubitas
├── kernel             // kernel source code
├── lib                // some gcc code like printk, etc.
├── mk                 // sub-level makefile 
└── mm                 // memory management, e.g. heap, memset etc.

Features

• printk
• scanf: implement by DMA
  • usart interrupt
  • usart DMA
  • scanf
• command shell
• Timer interrupt
• context switch
  • Stack initialization
• list api
• memory management
  • malloc
  • free
• task and thread
  • task
• scheduler
  • Round Robin

Reference

• tenok
• task
• malloc